I only use my bike in the summer(2 months)in order to get to my summer job. Have had my bike for 2 years now. Last year had my rear tire get pop twice, one was a pretty big gash, and forget what other look like. The past 2x I hit a curb trying to jump it(my tires weren't hard rock). Today I got a flat just riding it, didnt do anything fancy.

My question is first should my mtb tires be hard rock, usually I leave it so there is some indention when I press on the tire. However had my bike tuned this Tuesday, and the shop had pumped my tire rock hard. 2nd question, is there a problem with the rim's or tire or something and not the way I ride? I'll post a pic of what today's flat looks like